【记录】CentOS中禁止掉邮件服务dovecot和postfix – 在路上

安宇雨 - 随手采集
2019-01-10 12:10:53
随手采集
0000-未整理-等待研究

之前在Linode的VPS中安装了邮件服务器的服务：

postfix和dovecot

后来不用了，换成了163的免费企业有了：

【记录】给crifan.com的邮件服务器安装垃圾过滤系统

现在不用自己的邮件服务器了，要去禁止掉对应的服务。

【记录】

记不太清命令了。

去找到：

systemd – ArchWiki

然后搞定了：

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crifan@crifan:~$ service postfix status

Redirecting to /bin/systemctl status postfix.service

● postfix.service - Postfix Mail Transport Agent

Loaded: loaded (`/usr/lib/systemd/system/postfix`.service; enabled; vendor preset: disabled)

Active: active (running) since Mon 2016-05-09 22:54:40 CST; 1 weeks 3 days ago

Process: 3552 ExecStart=`/usr/sbin/postfix start (code=exited, status=0/SUCCESS)`

Process: 3545 ExecStartPre=`/usr/libexec/postfix/chroot-update (code=exited, status=0/SUCCESS)`

Process: 3509 ExecStartPre=`/usr/libexec/postfix/aliasesdb (code=exited, status=0/SUCCESS)`

Main PID: 4000 (master)

CGroup: /system`.slice/postfix.service`

├─ 4000 /usr/libexec/postfix/master -w

├─ 4002 qmgr -l -t unix -u

├─ 4947 tlsmgr -l -t unix -u

└─10534 pickup -l -t unix -u

crifan@crifan:~$ systemctl postfix disable

Unknown operation 'postfix'`.`

crifan@crifan:~$ systemctl disable postfix

==== AUTHENTICATING FOR org.freedesktop.systemd1.manage-unit-files ===

Authentication is required to manage system service or unit files.

Authenticating as: root

Password:

==== AUTHENTICATION COMPLETE ===

Removed symlink /etc/systemd/system/multi-user`.target.wants/postfix.service.`

==== AUTHENTICATING FOR org.freedesktop.systemd1.reload-daemon ===

Authentication is required to reload the systemd state.

Authenticating as: root

Password:

==== AUTHENTICATION COMPLETE ===

crifan@crifan:~$ sudo systemctl disable postfix

[`sudo`] password for crifan:

crifan@crifan:~$ sudo systemctl status postfix

● postfix.service - Postfix Mail Transport Agent

Loaded: loaded (`/usr/lib/systemd/system/postfix`.service; disabled; vendor preset: disabled)

Active: active (running) since Mon 2016-05-09 22:54:40 CST; 1 weeks 3 days ago

Main PID: 4000 (master)

CGroup: /system`.slice/postfix.service`

├─ 4000 /usr/libexec/postfix/master -w

├─ 4002 qmgr -l -t unix -u

├─ 4947 tlsmgr -l -t unix -u

└─10534 pickup -l -t unix -u

May 20 12:53:13 crifan.com postfix`/pipe[4309]: 374923D80: to=<admin@crifan.com>, relay=dovecot, delay=1.3, delays=1.3/0.02/0/`...rvice)

May 20 12:53:13 crifan.com postfix`/qmgr`[4002]: 374923D80: removed

May 20 12:53:13 crifan.com postfix`/smtpd`[4297]: disconnect from unknown[58.39.241.228]

May 20 13:00:19 crifan.com postfix`/smtpd`[5604]: warning: hostname no-reverse-dns-configured.com does not resolve to address 8...62.175

May 20 13:00:19 crifan.com postfix`/smtpd`[5604]: connect from unknown[89.248.162.175]

May 20 13:00:19 crifan.com postfix`/smtpd`[5604]: warning: unknown[89.248.162.175]: SASL LOGIN authentication failed: Invalid a...hanism

May 20 13:00:19 crifan.com postfix`/smtpd`[5604]: disconnect from unknown[89.248.162.175]

May 20 13:03:39 crifan.com postfix`/anvil[5606]: statistics: max connection rate 1/60s for (smtp:89.248.162.175) at May 20 13:00:19`

May 20 13:42:05 crifan.com postfix`/smtpd`[11181]: connect from 220-244-5-154.static.tpgi.com.au[220.244.5.154]

May 20 13:42:06 crifan.com postfix`/smtpd`[11181]: disconnect from 220-244-5-154.static.tpgi.com.au[220.244.5.154]

Hint: Some lines were ellipsized, use -l to show in full.

crifan@crifan:~$ sudo systemctl help

This command expects one or more unit names. Did you mean --help?

crifan@crifan:~$ systemctl --help

systemctl [OPTIONS...] {COMMAND} ...

Query or send control commands to the systemd manager.

-h --help Show this help

--version Show package version

--system Connect to system manager

-H --host=[USER@]HOST

Operate on remote host

-M --machine=CONTAINER

Operate on local container

-t --`type`=TYPE List units of a particular type

--state=STATE List units with particular LOAD or SUB or ACTIVE state

-p --property=NAME Show only properties by this name

-a --all Show all loaded units`/properties, including dead/empty`

ones. To list all units installed on the system, use

the 'list-unit-files' command instead.

-l --full Don't ellipsize unit names on output

-r --recursive Show unit list of host and local containers

--reverse Show reverse dependencies with 'list-dependencies'

--job-mode=MODE Specify how to deal with already queued jobs, when

queueing a new job

--show-types When showing sockets, explicitly show their type

-i --ignore-inhibitors

When shutting down or sleeping, ignore inhibitors

--`kill-who`=WHO Who to send signal to

-s --signal=SIGNAL Which signal to send

--now Start or stop unit in addition to enabling or disabling it

-q --quiet Suppress output

--no-block Do not wait until operation finished

--no-wall Don't send wall message before halt`/power-off/reboot`

--no-reload Don't reload daemon after en-`/dis-abling unit files`

--no-legend Do not print a legend (column headers and hints)

--no-pager Do not pipe output into a pager

--no-ask-password

Do not ask for system passwords

--global Enable`/disable unit files globally`

--runtime Enable unit files only temporarily until next reboot

-f --force When enabling unit files, override existing symlinks

When shutting down, execute action immediately

--preset-mode= Apply only enable`, only disable, or all presets`

--root=PATH Enable unit files in the specified root directory

-n --lines=INTEGER Number of journal entries to show

-o --output=STRING Change journal output mode (short, short-iso,

short-precise, short-monotonic, verbose,

export`, json, json-pretty, json-sse, cat`)

--plain Print unit dependencies as a list instead of a tree

Unit Commands:

list-`units [PATTERN...] List loaded units`

list-sockets [PATTERN...] List loaded sockets ordered by address

list-timers [PATTERN...] List loaded timers ordered by next elapse

start NAME... Start (activate) one or more units

stop NAME... Stop (deactivate) one or more units

reload NAME... Reload one or more units

restart NAME... Start or restart one or more units

try-restart NAME... Restart one or more units if active

reload-or-restart NAME... Reload one or more units if possible,

otherwise start or restart

reload-or-try-restart NAME... Reload one or more units if possible,

otherwise restart if active

isolate NAME Start one unit and stop all others

kill NAME... Send signal to processes of a unit

is-active PATTERN... Check whether units are active

is-failed PATTERN... Check whether units are failed

status [PATTERN...|PID...] Show runtime status of one or more units

show [PATTERN...|JOB...] Show properties of one or more

units`/jobs or the manager`

cat PATTERN... Show files and drop-ins of one or more units

set`-property NAME ASSIGNMENT... Sets one or more properties of a unit`

help PATTERN...|PID... Show manual for one or more units

reset-failed [PATTERN...] Reset failed state for all, one, or more

units

list-dependencies [NAME] Recursively show units which are required

or wanted by this unit or by which this

unit is required or wanted

Unit File Commands:

list-unit-files [PATTERN...] List installed unit files

enable NAME... Enable one or more unit files

disable NAME... Disable one or more unit files

reenable NAME... Reenable one or more unit files

preset NAME... Enable`/disable one or more unit files`

based on preset configuration

preset-all Enable`/disable all unit files based on`

preset configuration

is-enabled NAME... Check whether unit files are enabled

mask NAME... Mask one or more units

unmask NAME... Unmask one or more units

link PATH... Link one or more units files into

the search path

add-wants TARGET NAME... Add 'Wants' dependency for the target

on specified one or more units

add-requires TARGET NAME... Add 'Requires' dependency for the target

on specified one or more units

edit NAME... Edit one or more unit files

get-default Get the name of the default target

set`-default NAME Set the default target`

Machine Commands:

list-machines [PATTERN...] List local containers and host

Job Commands:

list-jobs [PATTERN...] List jobs

cancel [JOB...] Cancel all, one, or more jobs

Snapshot Commands:

snapshot [NAME] Create a snapshot

delete NAME... Remove one or more snapshots

Environment Commands:

show-environment Dump environment

set`-environment NAME=VALUE... Set one or more environment variables`

unset`-environment NAME... Unset one or more environment variables`

import`-environment [NAME...] Import all or some environment variables`

Manager Lifecycle Commands:

daemon-reload Reload systemd manager configuration

daemon-reexec Reexecute systemd manager

System Commands:

is-system-running Check whether system is fully running

default Enter system default mode

rescue Enter system rescue mode

emergency Enter system emergency mode

halt Shut down and halt the system

poweroff Shut down and power-off the system

reboot [ARG] Shut down and reboot the system

kexec Shut down and reboot the system with kexec

exit Request user instance exit

switch-root ROOT [INIT] Change to a different root file system

suspend Suspend the system

hibernate Hibernate the system

hybrid-`sleep Hibernate and suspend the system`